Research show that one in five U.S. schools has indoor air quality (IAQ) problems; 36 percent have inadequate heating, ventilation, and air conditioning (HVAC) systems; and there appears to be a correlation between IAQs and the proportion of a school's students coming from low-income households. This report examines the IAQ issue in U.S. public…

Understanding the primary causes of indoor air quality (IAQ) problems and how controllable factors--proper heating, ventilation and air-conditioning (HVAC) system design, allocation of adequate outdoor air, proper filtration, effective humidity control, and routine maintenance--can avert problems may help all building owners, operators, and…